PSA8BU2 - Grade 8 Mathematics Practice Test 2011

The Venn diagram below shows the number of students in Mr. Jenson’s class who have short hair, curly hair, blond hair, or any combination of these characteristics.

What is the total number of students in Mr. Jenson’s class who have hair that is short but not blond?

Select one:

A box is in the shape of a rectangular prism and has a volume of 360 cubic inches. The box has a width of 6 inches and a length of 10 inches. What is the height of the box?

Select one:

Jeff completed a hiking trail in t hours. Michelle completed the trail in half the time it took Jeff to complete it. Which of the following expressions represents the time it took Michelle to complete the hiking trail?

A.

B.

C.

D.

Select one:

Susan bought a quart of milk for \$0.99. What was the cost, to the nearest cent, of one fluid ounce of the milk?

(1 quart = 32 fluid ounces)

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):

Tamara has a spinner divided into only red sections and blue sections. When the arrow on the spinner is spun 1 time, the probability that it will stop on a red section is  .  Tamara will spin the arrow on the spinner 3 times. Which of the following situations is most likely to occur?

Select one:

The width of a classroom door is indicated in the picture below.

Which of the following is most likely the width of the door?

Select one:

The expression below represents the height, in feet, of a ball t seconds after it is thrown into the air.

What is the height of the ball 3 seconds after it is thrown into the air?

Select one:

What is the value of the expression below?

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part A)

Chris used triangles to make the first four steps of a pattern, as shown below.

The pattern continues to grow.

What will be the total number of triangles in Step 5 of the pattern?

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part B)

Show your reasoning on paper, take a picture, and upload it using the image upload icon .

If you do not have the ability to upload an image of your work, type "Work is on paper."

Part C)

Write an expression in terms of n that represents the total number of triangles in Step n of the pattern.

Part D)

Use your expression from part to find the total number of triangles in Step 10 of the pattern.

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part E)

Show your reasoning on paper, take a picture, and upload it using the image upload icon .

If you do not have the ability to upload an image of your work, type "Work is on paper."

Part F)

Chris made one step of the pattern that had 15 more triangles than the step before it. What step of the pattern had 15 more triangles than the step before it?

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part G)

Show your reasoning on paper, take a picture, and upload it using the image upload icon .

If you do not have the ability to upload an image of your work, type "Work is on paper."

Which graph has the line with the greatest slope?

Select one:

The grand prize in a radio station contest is a cruise. At the end of the contest, a computer will randomly select the winner’s destination, room location, and dinnertime from the options in the table below.

What is the probability that the computer will select a cruise to Alaska with a room on Deck 2 and a dinnertime of 7:00–9:00 p.m.?

Select one:

Which of the following is equivalent to the expression below?

Select one:

Lainey drew Figure P on a coordinate grid. Then she did a one-step transformation of Figure P to draw Figure Q, as shown below.

Which of the following one-step transformations of Figure P could Lainey have done to draw Figure Q?

Select one:

The table below shows the number of e-mail messages that Andrea received each day Monday through Thursday.

Andrea also received e-mail messages on Friday. The mean number of e-mail messages per day that she received Monday through Friday was exactly 7. What was the total number of e-mail messages that Andrea received on Friday?

Select one:

Mr. Danville teaches three drama classes.

• The first class has 24 students.

• The second class has 30 students.

• The third class has 18 students.

Mr. Danville wants to divide each class into groups so that every group in every class has the same number of students and there are no students left over. What is the maximum number of students that he can put into each group?

Select one:

The saguaro cactus can grow to a maximum height of 12 meters. What is the maximum height to the nearest foot of the saguaro cactus?

()

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):

Phyllis made the stack of blocks shown below.

Which of the following figures shows the front view of the stack of blocks?

Select one:

Carlton traveled 225 miles in hours. Phillip traveled the same distance at an average speed that was 10 miles per hour faster than Carlton’s average speed. What was the number of hours it took Phillip to travel 225 miles?

Select one:

A newspaper reporter surveyed 30 people after they cast their votes in a recent election. He created the stem-and-leaf plot below to display the ages of the voters surveyed.

Which of the following is closest to the percent of the voters surveyed whose age was less than 41?

Select one:

A rose garden is in the shape of a circle with a circumference of approximately 37.7 feet. Which of the following is closest to the diameter of the rose garden? (Use 3.14 for .)

Select one:
Part A)

Leo works 22.5 hours each week and earns \$9.48 per hour.

What amount of money does Leo earn each week?

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part B)

Show your reasoning on paper, take a picture, and upload it using the image upload icon .

If you do not have the ability to upload an image of your work, type "Work is on paper."

Part C)

Each week, \$25.60 is taken out of Leo’s earnings for taxes.

What percent of Leo’s weekly earnings is taken out for taxes?

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part D)

Show your reasoning on paper, take a picture, and upload it using the image upload icon .

If you do not have the ability to upload an image of your work, type "Work is on paper."

Part E)

Leo wants to buy a car that costs \$3000. He plans to save all of his earnings that remain after taxes are taken out. What is the minimum number of hours that Leo must work in order to save \$3000 to buy the car?